<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.w3.org/1999/xhtml">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<h2>系统出现问题</h2>
<div >
    <pie th:text="${msg}">

    </pie>
</div>
</body>
</html>